| 1. | The mechanism of carbon fiber damage during preparation of cmcs by pip was clarified firstly
探明了pip工艺制备cmcs过程中碳纤维的损伤形式。 |
| 2. | The influence of different precursors and carbon fibers on carbon fiber damage during preparation of cmcs by pip was systemically studied firstly
本文首次较系统地对不同先驱体和不同碳纤维在pip工艺制备cmcs过程中对碳纤维损伤的影响进行了研究。 |
| 3. | The harm and test methods of the potential damage are discussed in order to help to understand the fiber damage mechanism during the spinning process
本文就潜在损伤的危害及测试方法进行了讨论，这些讨论将有助于我们理解纺纱加工过程中纤维损伤机理。 |
| 4. | The differences of carbon fiber damage caused by different preparing conditions are showed clearly . a good test method is applied for studying carbon fiber damage in pip process
测试结果可以明显反映出不同工艺对碳纤维损伤的差别，为研究碳纤维在pip工艺过程中的损伤提供了手段。 |
| 5. | The multifilament tension strength test was firstly applied to characterizing carbon fibers damage degree in cmcs during pip , which as an intractable problem was resolved successfully
本文首次应用复丝拉伸强度测试来表征pip工艺中碳纤维的损伤程度，较好地解决了陶瓷基复合材料中碳纤维损伤程度如何表征这一棘手的问题。 |
| 6. | Research improvements are introduced in brief in this article , including selecting optical fiber and fiber - end surface preparation , fiber damage theory and threshold , coupling conductions , coupling efficiency
文中简要介绍了高功率激光耦合的关键技术，包括激光光纤耦合条件、耦合效率、光纤的选择和端面处理、光纤损伤机理及其阈值条件等方面。 |
| 7. | The chemical damage is not the main factor of strength lose . it was first proved that the combined oxygen does not damage carbon fibers obviously , which corrects the long - term misunderstanding about the influence of oxygen on carbon fiber damage
化学损伤并不是导致碳纤维强度下降的主要因素，其中先驱体化合态的氧并不会对碳纤维产生明显的损伤，纠正了人们长期以来的错误认识。 |
| 8. | The types and reasons of fiber damage in blowing carding process , the influence of fiber damage on yarn quality , the method to designate potential fiber damage and some technological measures to reduce the fiber damage are discussed in this paper
摘要讨论了1清梳过程中纤维损伤的分类和成因， 2纤维损伤对成纱质量的影响， 3减少纤维损伤的工艺措施， 4测定纤维潜在损伤的方法。 |
| 9. | The carbon fiber damage mainly occurs in the first cycle of pip , in which carbon fiber strength lose is greater than the total strength lose in following cycles , and the main form of damage is physical damage of thermal stress
Pip工艺第一周期对碳纤维损伤最大，第一周期中碳纤维的强度损失率远大于后续多个周期浸渍裂解中碳纤维强度损失的总和。碳纤维损伤的主要形式是热应力物理损伤。 |
| 10. | Focusing on serious damage of carbon fibers in ceramic matrix composites ( cmcs ) prepared by precursor infiltration pyrolysis ( pip ) , and with emphasis on carbon fiber reinforced silicon carbide composites ( cf / sic ) derived from polycarbosilane ( pcs ) , the influences of raw materials ( including carbon fibers and precursors , etc . ) and preparing conditions on carbon fiber damage during the preparation of cf / sic composites were investigated systemically . pyrolysis process , fiber - matrix interface and carbon fiber damage process were observed by sem , tem , ir , xrd , xps and tq etc . the characterization method of carbon fiber damage degree was established and the models for carbon fiber damage mechanism were also established . the carbon fiber coatings and unidirectional cf / sic composites with coated carbon fibers were prepared and studied
本文针对先驱体浸渍裂解工艺制备陶瓷基复合材料过程中碳纤维损伤严重的问题，以聚碳硅烷( pcs )制备cf / sic复合材料为重点，采用sem 、 tem 、 ir 、 xrd 、 xps 、 tg等表征手段，分析了先驱体裂解过程、纤维基体界面和碳纤维损伤过程，系统地研究了原料(碳纤维、先驱体等)和制备工艺条件等在cf / sic复合材料制备过程中对碳纤维损伤的影响，建立了碳纤维损伤程度的表征方法和损伤机理模型，制备了纤维表面涂层并利用涂层碳纤维制备了单向cf / sic复合材料。 |
